Vocabulary:

---

Coral reef:A structure of calcite skeletons built up by coral animals in warm, shallow ocean water.
Atoll:A ring shaped coral island found far from land.

Outline

---

• living coral
  • algae
  • sack with tenticals
• how coral reefs form
  • calcite skeletons
  • fringing reefs
  • barrier reefs
  • atolls
• limestone deposits from coral reefs
  • coral buried by sediment

Diagram

---